rockbox/firmware/target/arm/imx233/kernel-imx233.c, branch master

imx233: simplify timrot API

2016-05-28T15:18:32+00:00

The old timrot setup API was very low-level and unfriendly. The new one
makes in easier to select the frequency source. Use to simplify timer
and kernel timer code.

Change-Id: Iffcdf11c00e925be9ec8d9a4efc74b197b6bd2aa

imx233: generate register headers using headergen_v2 and update code for it

2016-05-28T14:49:22+00:00

NOTE: this commit does not introduce any change, ideally even the binary should
be almost the same. I checked the disassembly by hand and there are only a few
differences here and there, mostly the compiler decides to compile very close
expressions slightly differently. I tried to run the new code on several targets
to make sure and saw no difference.

The major syntax changes of the new headers are as follows:
- BF_{WR,SET,CLR} are now superpowerful and allows to set several fileds at once:
  BF_WR(reg, field1(value1), field2(value2), ...)
- BF_CS (use like BF_WR) does a write to reg_CLR and then reg_SET instead of RMW
- there is no more need for macros like BF_{WR_,SET,CLR}_V, since one can simply
  BF_WR with field_V(name)
- the old BF_SETV macro has no trivial equivalent and is replaced with its
  its equivalent for BF_WR(reg_SET, ...)

I also rename the register headers: "regs/regs-x.h" -> "regs/x.h" to avoid the
redundant "regs".

Final note: the registers were generated using the following command:
./headergen_v2 -g imx -o ../../firmware/target/arm/imx233/regs/ desc/regs-stmp3{600,700,780}.xml

Change-Id: I7485e8b4315a0929a8edb63e7fa1edcaa54b1edc

imx233: clean timrot a bit

2014-02-10T22:14:23+00:00

Change-Id: Ic803a6b5c93978cd3246e553579ac8a1ba35e191

imx233: rework power management

2013-07-07T15:36:21+00:00

The current code was spreaded over power and powermgmt which made
it behave strangely, especially since there are relationships
between power management and frequency scaling. The new code makes
sure power management is initialised before frequency scaling
starts. It also makes sure to start from a known state, thus
fixing potential issue when the bootloader stops in a trickle
state where DCDC is improperly configured.

Change-Id: Ibded2e590e108f6c98daa52d2cf1bd28763c8923

imx233: rewrite timrot using new register headers

2013-06-16T16:21:49+00:00

Change-Id: Ia6dc7ac7e1fdf471a518111f5593bd96bc3acfac

imx233: use tick insteaf of msec to collect statistics

2012-12-26T20:26:33+00:00

The current code uses the msec irq to collect statistics and
detect irq storms (debug). But this irq is triggered 1000 times
per sec and we don't need that accuracy. This commit removes the
msec irq and use the tick timer instead which is triggered only
100 times per second.

Change-Id: If14b9503c89a3af370ef322678f10e35fafb4b8a

imx233: move away timer defines from imx233.h

2012-05-19T14:10:52+00:00

Change-Id: I9f721ae12a3ddf72c4e90ad0754a5c2b819847bb

imx233: update arbiter to get more debug information, update debug screen accordingly

2012-01-27T19:08:33+00:00

Change-Id: Ia229e5303692712295f1dbd37a76f865a3eef4ea

imx233: add DCP driver (only memcpy implemented), move channel arbiter to kernel-imx233

2012-01-15T01:29:30+00:00

Change-Id: I2bc5a49459c354027fc67a880bbf3b87c942bdd0

imx233/fuze+: implement user time api, implement a stub function, protect timrot against irq

2011-09-06T00:27:38+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30437 a1c6a512-1295-4272-9138-f99709370657